package cn.edu.zafu.bigdata.smj;
class Vehicle{
    void move(){
        System.out.println("Vehicle is moving");
    }
}

class Car extends Vehicle{
    void move(){
        System.out.println("Car is moving");
    }
}

class Bicycle extends Vehicle{
    void move(){
        System.out.println("Bicycle is moving");
    }
}
public class TestVehicles {
    public static void main(String[] args){
        Vehicle[] vehicles = new Vehicle[2];
        vehicles[0]= new Car();
        vehicles[1] = new Bicycle();

        for (Vehicle vehicle : vehicles)
            vehicle.move();
    }
}
